Method of making hubs



June 1931. I Q N. 1,811,996 IETHOD OF KING HUBS Filed June 4, 1929 fill/1,1,11,11 11 I T F. 6 3

IN VEN TOR.

Canowslhcsmnmn P16 7 A TTOR NE Y.

Patented June 30, 193i l,'8ll,996

UNITED J'STATE'S PATENT orFrcr-z GABDLUS L. E'KSEBGIAN, OI DETROIT, MICHIGAN, ASSIGNOR 'IO BUDD WHEEL COM- PANY, OI' PH.II|.ADEI|PHIA', PENNSYLVANIA, A CORCBORATION OF PENNSYLVANIA.

METHOD OF MAKING 31733 Application filed June 4, 1929. Serial No. 368,350.

It is the aim of this invention to utilize preformed tubin to form a large part of the completed hub. This is to the end of cuttmg down the amount of machining necessary on the hub, economizing on material and labor. The method consists in forming flanged tubular parts, in abutting relation and securing the flanges of parts together to form the root of a radially extending hub flange, with 10 the arts in axial alignment, and in commonly flash welding to the peripheries of the flanges a ring of metal of suflicient thickness to complete the radius of the hub flange desired.

Referring to the drawings, Figure 1 shows in axial section, a long section of tubing for the forming of one flanged art P Figure 2 a somewhat shorter section of tubing for the forming of the other flanged Parts, 7 4

' Figures 3 and 1 show the two sectlons of tubing flanged at their ends, Figure 5 shows them placed in axial alignment with the flanges abutted and secured p as to ether,

igure 6 shows fiat strip stock from which a ring is to be formed,

Figure 7 shows the ring so formed and Figure 8 is an axial cross section of the 8 completed hub'formed by the welding of the rl'gi lng to the flanges of the assembled parts of Ihe sections of tubing 10 and 11 of Figs. 1 and 2 are cutfrom long lengths of tubing of appropriate-"wall thickness and internal and external diameter. chosen not' only with respect to the ultimate wall thickness of the hub parts of the barrel desired, but also with re 'ect to the ultimate thickness of the roots 0 the flanges to be formed on the barrel. Expanding the ends of tubes to flange themresults in a thinning of the tube walls. This is taken into account.

Flanges 12 and 13 are formed on the respective tubes. They extend radially to a hei ht constituting not only the roots of the radial ultimate flanges of the completed pro duct of Fig. 8, but further to constitute a substantial art in the main body of the ultimate radial ange, so great a part of the main The wall thicknesses are body that the annular ring, which is to surmount them and to complete the flange, may be of relatively small thickness. These flanges I bevel on their peripheries as at 14 to constitute an axial seat for the ring which is to surmount them. The flanges 12 and 13 of the sections are then abutted as shown in Fig. 5 and are welded as shown at 15 on the interior, to secure them'together. The machining at-14 may be and preferably is done after the arc welding operation. This arc welding is 'done 'ina rotary arc welding machine.

Strip 15 of Fig. 6 is preferably-substantially of the-radial cross section of the ultimate ring 16 of the completed product shown in Fig. 8. It, therefore, already carries a bevel 17 complemental to the bevel 14 of the periphery of the flanges 12 and 13. It is cut into lengths suflicient to form the ring of pro er periphery bent into the form shown in ilg. 7 and the abutting endsbutt welded toget er as indicated at 18. The bevel 17 is machined or otherwise treated to render it a propriate for flash welding with the comp emental surface 14.

It is then flash welded under axial relative movement to the preassembled parts of Fig. 5 to produce the completed article of Fig. 8, the welding takin place uniformly over the complemental sur aces 14-17. Through this welding flan es 12 and 13 are peripherally secured to et er.

Obvious y there is no waste of material whatever by this process excepting such slight amounts as may be required for proper machinin There 1s no waste in cutting lengths o tubing and expanding the ends of the tubin there is no waste in cutting rings from strlp stock. This strip stock is relatively small in section, the ring 16 being relatively thin, since the roots of main bodies of the ultimate radial hub of theflanges are constituted by the flanges 12 and 13 expanded from the tubing.

What I claim as new and useful and desire to protect by Letters Patent is 1. The method of making'hubs which consists in separately flanging a pair of tubular sections, abutting the. flanges, and joining the flanges together by butt Welding commonly to them a ring of mate-rial.

2. The method of forming hubs which consists in forming flanged tubular sections,

5 abutting and securing together the flanges with the sections in axial alignment, and radially extending the flanges to form a hub flange by butt welding an annular ring to the periphery thereof.

3. The method of forming hubs which consists in forming end flanges on tubular sections, abutting the flanges, beveling their peripheries, and buttwelding an interiorly beveled ring to the beveled periphery of the 1 flanges.

4. The method of making hubs which consists informing end flanges on tubular sections, abutting and interiorly arc welding together the flanges of a pair of sections, and

butt welding an annular ring commonly to the peripheries of the flanges.

5. As an article of manufacture a hub comprising a. barrel having a radial flange, the root of which is divided into two parts in a plane at right angles to the axis of the hub, and the outer portion of which is constituted by a ring welded in common to the divided root portion.

In testimony whereof he hereunto afiixes his signature.

CAROLUS L. EKSERGIAN. 

